Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 400 · 40 sums

The trick (Anurupyena): Pick the working base (like 40 = 4 × 10 or 300 = 3 × 100) and write each number’s difference from it. Cross-add as in trick 3, then multiply that left part by 4 (or 3, 5…). Right part: multiply the differences — 1 digit for a × 10 base, 2 digits for a × 100 base (carry the extra).

1. 1.403 × 409 =
2. 2.49 × 48 =
3. 3.395 × 398 =
4. 4.36 × 36 =
5. 5.63 × 62 =
6. 6.204 × 206 =
7. 7.501 × 508 =
8. 8.603 × 603 =
9. 9.192 × 194 =
10. 10.52 × 51 =
11. 11.297 × 294 =
12. 12.207 × 207 =
13. 13.77 × 79 =
14. 14.196 × 191 =
15. 15.309 × 307 =
16. 16.64 × 63 =
17. 17.44 × 41 =
18. 18.599 × 596 =
19. 19.59 × 56 =
20. 20.508 × 509 =
21. 21.68 × 69 =
22. 22.297 × 299 =
23. 23.504 × 501 =
24. 24.24 × 23 =
25. 25.47 × 48 =
26. 26.83 × 81 =
27. 27.78 × 78 =
28. 28.302 × 302 =
29. 29.28 × 28 =
30. 30.94 × 92 =
31. 31.48 × 46 =
32. 32.193 × 193 =
33. 33.71 × 73 =
34. 34.598 × 599 =
35. 35.394 × 392 =
36. 36.597 × 598 =
37. 37.595 × 598 =
38. 38.393 × 399 =
39. 39.37 × 37 =
40. 40.591 × 599 =

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